Upgrade matrix-js-sdk to 9.0.0-rc.1

package.json

@@ -60,7 +60,7 @@
     "gfm.css": "^1.1.2",
     "highlight.js": "^9.13.1",
     "jsrsasign": "^9.1.5",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
+    "matrix-js-sdk": "9.0.0-rc.1",
     "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#develop",
     "matrix-widget-api": "^0.1.0-beta.5",
     "olm": "https://packages.matrix.org/npm/olm/olm-3.2.1.tgz",

yarn.lock

@@ -7898,6 +7898,21 @@ mathml-tag-names@^2.1.1:
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.3.tgz#4ddadd67308e780cf16a47685878ee27b736a0a3"
   integrity sha512-APMBEanjybaPzUrfqU0IMU5I0AswKMH7k8OTLs0vvV4KZpExkTkY87nR/zpbuTPj+gARop7aGUbl11pnDfW6xg==
 
+matrix-js-sdk@9.0.0-rc.1:
+  version "9.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-9.0.0-rc.1.tgz#d74638244dcdcea26f8b73f56883f6f05b613e7e"
+  integrity sha512-FWY6q2ahF0oRTEMtld8T9z6eLyc6K/4x9MJxYysxvgAnIsAVQNj78MbTX3SCAawjfv4JpwdaSFn8o2ZyqpW4yw==
+  dependencies:
+    "@babel/runtime" "^7.11.2"
+    another-json "^0.2.0"
+    browser-request "^0.3.3"
+    bs58 "^4.0.1"
+    content-type "^1.0.4"
+    loglevel "^1.7.0"
+    qs "^6.9.4"
+    request "^2.88.2"
+    unhomoglyph "^1.0.6"
+
 "matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
   version "8.5.0"
   resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/9f713781cdfea2349115ffaac2d665e8b07fd5dc"